Method and apparatus for recovery of metal from solution

Details Method and apparatus for recovery of metal from solution Method and apparatus for recovery of metal from solution

1985-12-30

1987-06-23

Andrews, R. L.

Chemistry: electrical and wave energy

Processes and products

Electrostatic field or electrical discharge

204109, 204228, 204229, 204231, 204272, 204273, 204275, 204400, 204435, C25C 100

Patent

active

046750851

ABSTRACT:
Apparatus and method for recovering metal from a metal-containing solution. The apparatus is comprised of a case containing an anode and a cathode in fixed, spaced relationship relative to each other, and a power supply operable to apply a voltage across the anode and cathode. The increase in voltage between said anode and cathode is continually monitored and compared to a reference voltage until the increase exceeds the reference voltage, at which point a solenoid valve is energized to open a drain and drain the metal-containing solution from the case. A pump is provided to constantly circulate the metal-containing solution from top to bottom in the case while the voltage is applied between the anode and cathode to mix the solution, facilitating the plating of the metal. Also provided is a hollow, spiral anode, the solution being circulated through the hollow anode and out through the walls of the anode toward the cathode.

REFERENCES:
patent: 3458425 (1969-07-01), Tolle et al.
patent: 3560366 (1971-02-01), Fisher
patent: 4028212 (1977-06-01), Bowen
patent: 4280884 (1981-07-01), Babb et al.
patent: 4362608 (1982-12-01), Biles et al.
patent: 4377456 (1983-03-01), De Meester et al.
patent: 4439300 (1984-03-01), Houseman

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